I've just noticed some of the cutscenes in Megarace 2 have small audio glitches, kinda like a CD skipping, or minor encoding errors, or something. Does anyone else experience that? Is that a dosbox thing, or the way the ISO was made, or something else entirely?

I KNOW, right? ;)

I'm not sure if this will help, but I was noticing flickering in the videos, when I changed DOSbox's output to OpenGL it went away. You can do this either by using the 'Graphics mode setup' executable or by altering the 'dosboxmegarace2.conf'. You want to change the line that says 'output=overlay' to 'output=OpenGL'